summaryrefslogtreecommitdiffstats
path: root/contrib/llvm/lib/CodeGen/RegisterPressure.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/llvm/lib/CodeGen/RegisterPressure.cpp')
-rw-r--r--contrib/llvm/lib/CodeGen/RegisterPressure.cpp12
1 files changed, 12 insertions, 0 deletions
diff --git a/contrib/llvm/lib/CodeGen/RegisterPressure.cpp b/contrib/llvm/lib/CodeGen/RegisterPressure.cpp
index 450a305..c3786e5 100644
--- a/contrib/llvm/lib/CodeGen/RegisterPressure.cpp
+++ b/contrib/llvm/lib/CodeGen/RegisterPressure.cpp
@@ -77,6 +77,16 @@ void RegPressureTracker::dump() const {
P.dump(TRI);
}
+void PressureDiff::dump(const TargetRegisterInfo &TRI) const {
+ for (const PressureChange &Change : *this) {
+ if (!Change.isValid() || Change.getUnitInc() == 0)
+ continue;
+ dbgs() << " " << TRI.getRegPressureSetName(Change.getPSet())
+ << " " << Change.getUnitInc();
+ }
+ dbgs() << '\n';
+}
+
/// Increase the current pressure as impacted by these registers and bump
/// the high water mark if needed.
void RegPressureTracker::increaseRegPressure(ArrayRef<unsigned> RegUnits) {
@@ -787,6 +797,8 @@ getMaxUpwardPressureDelta(const MachineInstr *MI, PressureDiff *PDiff,
RegPressureDelta Delta2;
getUpwardPressureDelta(MI, *PDiff, Delta2, CriticalPSets, MaxPressureLimit);
if (Delta != Delta2) {
+ dbgs() << "PDiff: ";
+ PDiff->dump(*TRI);
dbgs() << "DELTA: " << *MI;
if (Delta.Excess.isValid())
dbgs() << "Excess1 " << TRI->getRegPressureSetName(Delta.Excess.getPSet())
OpenPOWER on IntegriCloud